Carb bore info thread for retro fits

[bikemike]

Looking to find out the main bore and venturi bore for stihl 034 av super and stihl 044. I'd like to put a bigger carb om my 026 woody pro.

 

[LegDeLimber]

This was just a quick google for 034 super. I have NO clue as to the accuracy.
You'll need to ask someone who has the saw (if you don't have one) for the true carburetor fitted.

Correct or not, I got the results of a Zama C3A-S31.
http://www.zamacarb.com/carburetors/865
Looking at the top of that page (just below the Zama logo), I see "Products" listed amongst things.
Clicking Products took me to this page:
http://www.zamacarb.com/page/products
On that page I saw a list of the carburetor types.
Picking the C3A spot took me to this page:
http://www.zamacarb.com/page/products#C3A
There you'll see some numbers for the various throttle bore diameters
(the size of the carb after the venturi, where it meets the intake)
along with some various venturi sizes available in that series of carburetor body.
(the "Choke Bore" is the opening on side of the carb where it meets the air filter)

I've also noticed that when searching Zama site, You'll often get better results by capitalizing the letters of the carburetor in question!
Walbro seems to be drifting in that direction a bit also.

Hopefully I haven't just listed something you already knew about.
apologies if so.
It's morning and I'm not properly caffeinated yet